Product Overview & Applications
The 300kV/5mA DC Hipot Tester is a high - precision DC high - voltage generator designed for power systems. With a split - type structure, it delivers a rated output of 300kV DC voltage and 5mA DC current, ideal for DC withstand voltage tests and leakage current measurements on high - voltage electrical equipment such as metal oxide surge arresters, power cables, transformers, and more. Widely used in power grids, industrial plants, mining, metallurgy, and steel industries, it ensures the safety and reliability of electrical infrastructure.
Key Features & Advantages
High Accuracy: Built - in voltage meter displays load voltage directly, eliminating the need for external dividers.
Stable Output: Full - range smooth voltage regulation with low ripple coefficient (≤0.5%) ensures steady performance.
Multi - Layer Protection: Over - voltage, over - current, zero - start, and grounding protections for enhanced safety.
Ultra - Fast Fault Response: Nanosecond - level sensors instantly shut down the main circuit to protect the device.
User - Friendly Interface: Features 0.75x voltage quick - switch and digital dials for preset protection thresholds.
Advanced Technology: Utilizes PWM high - frequency pulse - width modulation and high - power IGBT modules for superior stability.
Operating Conditions
Temperature: - 10°C to +40°C
Humidity: ≤85% at 25°C (non - condensing)
Power Supply: Single - phase AC 220V ±10%, 50/60Hz
Additional Features
Modular Design: Includes control box, voltage multiplier, high - voltage microammeter, current - limiting resistor, and discharge rod.
Duty Cycle: 30 minutes at rated load (intermittent use); 10 minutes at 1.1x rated voltage.
Polarity Options: Supports ±DC output with zero - start and continuously adjustable voltage.
Maintenance & Troubleshooting (FAQ)
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Technical Specifications
Rated Voltage: 300kV
Rated Current: 5mA
Power: 1500W
Weight: Control box (7.5kg)
Voltage Multiplier： (11.5kg)
Accuracy: ±(1.0% of reading + 2 digits)
Ripple Coefficient: ≤0.5%
Voltage Stability: ≤1% under ±10% input voltage fluctuation
